/**
 * Copyright (c) 2015-2016, Michael Yang 杨福海 (fuhai999@gmail.com).
 * <p>
 * Licensed under the GNU Lesser General Public License (LGPL) ,Version 3.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/lgpl-3.0.txt
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.jpress.ui.freemarker.tag;

import com.jfinal.core.JFinal;
import com.jfinal.plugin.activerecord.Page;
import io.jpress.core.render.freemarker.BasePaginateTag;
import io.jpress.core.render.freemarker.JTag;
import io.jpress.model.Comment;
import io.jpress.model.Content;
import io.jpress.model.query.CommentQuery;
import io.jpress.utils.StringUtils;

import javax.servlet.http.HttpServletRequest;

public class CommentPageTag extends JTag {

    public static final String TAG_NAME = "jp.commentPage";

    Content content;
    int pageNumber;
    HttpServletRequest request;

    public CommentPageTag(HttpServletRequest request, Content content, int pageNumber) {
        this.request = request;
        this.content = content;
        this.pageNumber = pageNumber;
    }

    @Override
    public void onRender() {

        int pageSize = getParamToInt("pageSize", 10);

        Page<Comment> page = CommentQuery.me().paginateByContentId(pageNumber, pageSize, content.getId());
        setVariable("page", page);
        setVariable("comments", page.getList());

        CommentPaginateTag pagination = new CommentPaginateTag(request, page, content);
        setVariable("pagination", pagination);

        renderBody();
    }

    public static class CommentPaginateTag extends BasePaginateTag {

        final Content content;
        final HttpServletRequest request;

        public CommentPaginateTag(HttpServletRequest request, Page<Comment> page, Content content) {
            super(page);
            this.request = request;
            this.content = content;
        }

        @Override
        protected String getUrl(int pageNumber) {
            String url = content.getUrlWithPageNumber(pageNumber);

            String queryString = request.getQueryString();
            if (StringUtils.isNotBlank(queryString)) {
                url += "?" + queryString;
            }

            if (StringUtils.isNotBlank(getAnchor())) {
                url += "#" + getAnchor();
            }
            return JFinal.me().getContextPath() + url;
        }

    }

}
